title: Studying the influence of paternity on parental effort: a comment on Kempenaers & Sheldon
abstract: Copyright 1998 The Association for the Study of Animal Behaviour
authors.affiliation: Zoological Museum, University of Oslo
authors.initials: JT
authors.lastname: Lifjeld
authors.initials: K
authors.lastname: Anthonisen
authors.initials: D
authors.lastname: Blomqvist
authors.initials: A
authors.lastname: Johnsen
authors.initials: C
authors.lastname: Krokene
authors.initials: K
authors.lastname: Rigstad